Question

***Please explain why you chose your answer***

Which of the following is NOT true?

               a) The surface tension of CH₃CH₂NH₃ is higher than that of both CH₃CHO and CCl₄.

               b) Water has a higher viscosity at a given temperature than does CH₃CH₂CH₂CH₂CH₃, and for both substances, the viscosity decreases when the temperature is raised.

               c) The cohesive forces between water molecules are stronger than the adhesive forces of water

                    molecules to glass, which leads to water showing a concave meniscus.

               d) XeF₂ is more soluble in C₆H₁₄ than in water while MgF₂ is more soluble in water than in C₆H₁₄.

     e) Of the three compounds, CH₃CH₂CH₂CH₃, CH₃CH₂CH₂OH, and CH₃COCH₃, CH₃CH₂CH₂OH has the

highest boiling point and CH₃CH₂CH₂CH₃ the lowest.

Answer 1

Date:- Ans - a Thank you very much. you understand why (a) is not True Page Hope Not true Compound value of Surface tenien density (a) molarman g/mol 45 * - 0.019 N/m | CH₂ - CH2 - NH 10.689 / and 44* - 0.021 N/m CH₂ - CHO ccl4 10.7glum? 1.599 km] 153.828 - 0.76 N/m y Experimental Relation of density with Surfence Tension = Yo (D -d) P surface tension density The more General form is Surface Tension is a demity of Substance Then higher density - higher Surfere Tension other all option – Correct *